求翻译：此后很多研究表明，可以通过提高细胞自动机结构的复杂性，如提高CA的维数或采用动态规则等方法来提高密钥流的周期和安全性是什么意思？

Since then many studies have shown that by increasing the complexity of the structure of cellular automata, such as increasing the number of dimensions ca or using dynamic rules and other methods to improve the cycle and security of the keystream

Since then, many studies have shown that cells can be achieved through greater self-motivation and the complexity of the structure such as the improvement of the CA dimension or methods such as using the dynamic rules to improve the Cycle key stream and security

Hereafter very many research indicated that, may through enhance the cellular automaton structure the complexity, like enhances CA the dimension or uses methods and so on dynamic rule to enhance the cycle and the security which the key flows

Since then many studies have shown that, by increasing the complexity of the structure of cellular automata, such as use dynamic rules or increase the dimension of the CA and other methods to increase the security key flow cycle and

正在翻译，请等待...